Platform_RTE/nvm_user_guide.html

// Define NVM layout

#define CONFIG_ADDR 0

#define CONFIG_SIZE 256


// Read configuration

config_t cfg;

rte_nvm_read(CONFIG_ADDR, (uint8_t *)&cfg, sizeof(cfg));


// Verify checksum

uint32_t crc = compute_crc((uint8_t *)&cfg, sizeof(cfg) - 4);

if (crc != cfg.checksum) {

    log_error("Config corrupted");

    use_default_config(&cfg);

}


// Save configuration

cfg.checksum = compute_crc((uint8_t *)&cfg, sizeof(cfg) - 4);

rte_nvm_write(CONFIG_ADDR, (uint8_t *)&cfg, sizeof(cfg));

rte_nvm_read
rte_status_t rte_nvm_read(rte_nvm_handle_t handle, size_t offset, void *out_buffer, size_t buffer_size)
Reads and integrity-checks data from an NVM region.
Definition rte_nvm.c:77

rte_nvm_write
rte_status_t rte_nvm_write(rte_nvm_handle_t handle, size_t offset, const void *buffer, size_t buffer_size)
Writes data and its integrity metadata to an NVM region.
Definition rte_nvm.c:97